The Casio FX-85GT Plus is a solar-powered scientific calculator with a regular-sized LCD display. This handheld device, featuring the Casio brand, is designed for office and business use. The calculator's power source is harnesses the power of the sun, making it a convenient and environmentally friendly option for various mathematical calculations. Its compact size and user-friendly interface make it a practical tool for professionals in the field of office equipment and supplies. As you can see there is a name on the inside (hence the price)
eBay